Unlike the dual SIM variants of the Sony Xperia XZ and XZs, the Xperia XZ Premium dual won't be featuring a hybrid SIM tray. The device will instead let you use two SIM cards and a microSD card simultaneously. This was confirmed by the French subsidiary of the Japanese company in a tweet, which also notes that the Xperia XA1 and XA1 Ultra will also be offering the same feature. For the uninitiated, a hybrid SIM slot only allows you to use one SIM card when a microSD card is being used. Source | Via
Source: http://www.gsmarena.com/sony_xperia_xz_premium_dual_will_let_you_use_two_sim_cards_and_an_sd_card_simultaneously-news-25167.php
